Initial commit: ASR v2 with multi-venv isolation

- faster-whisper, Qwen3-ASR, gateway 각 컴포넌트별 Python venv 분리
- 기본언어 한국어(ko)
- 처리내역 탭: 목록/상세/원본파일 재생/삭제
- 백엔드별 동적 모델 드랍다운
- /history, /uploads API 추가
- 기존 인스턴스(port 18100) 보존, 신규 port 18101

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/supervisord.conf

@@ -0,0 +1,37 @@
+[supervisord]
+nodaemon=true
+logfile=/dev/null
+pidfile=/tmp/supervisord.pid
+
+[program:faster_whisper]
+command=/opt/venvs/faster_whisper/bin/python /app/workers/faster_whisper_worker.py --host 0.0.0.0 --port 8001
+directory=/app
+autostart=true
+autorestart=true
+stdout_logfile=/dev/fd/1
+stdout_logfile_maxbytes=0
+stderr_logfile=/dev/fd/2
+stderr_logfile_maxbytes=0
+priority=10
+
+[program:qwen3]
+command=/opt/venvs/qwen3/bin/python /app/workers/qwen3_worker.py --host 0.0.0.0 --port 8004
+directory=/app
+autostart=true
+autorestart=true
+stdout_logfile=/dev/fd/1
+stdout_logfile_maxbytes=0
+stderr_logfile=/dev/fd/2
+stderr_logfile_maxbytes=0
+priority=20
+
+[program:gateway]
+command=/opt/venvs/gateway/bin/python -m uvicorn gateway:app --host 0.0.0.0 --port 8000
+directory=/app
+autostart=true
+autorestart=true
+stdout_logfile=/dev/fd/1
+stdout_logfile_maxbytes=0
+stderr_logfile=/dev/fd/2
+stderr_logfile_maxbytes=0
+priority=30